Я использую обзор переработчика, и внутри его адаптера у меня есть другой просмотр переработчика.
Как предотвратить изменение элемента и обновление элемента при обновлении элемента.Это создает визуальные глюки и неправильное позиционирование элементов
Я пытался прочитать непосредственно из базы данных ссылку на текущую позицию держателя.
Результат: https://media.giphy.com/media/j6TpXZRE6e44cMZVIP/giphy.gif
public class CommentsAdapter extends RecyclerView.Adapter<CommentsAdapter.ViewHolder>{
private Context mContext;
private List<Comments> mComments;
private List<Replies> allReplies;
public CommentsAdapter(Context mContext, List<Comments> mComments, List<Replies> allReplies )
{
this.mContext = mContext;
this.mComments = mComments;
this.allReplies = allReplies;
}
@NonNull
@Override
public CommentsAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(mContext).inflate(R.layout.all_comments_layout, viewGroup, false);
return new CommentsAdapter.ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, final int position)
{
final Comments comments = mComments.get(position);
holder.like.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
CommentUps.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
{
if (dataSnapshot.child(PostKey).child(com_uid).hasChild(currentUserID)) {
CommentUps.child(PostKey).child(com_uid).child(currentUserID).removeValue();
CommentsRef.child(PostKey).child(com_uid).child("likes").setValue(comments.getLikes() - 1);
} else {
CommentUps.child(PostKey).child(com_uid).child(currentUserID).setValue(true);
CommentsRef.child(PostKey).child(com_uid).child("likes").setValue(comments.getLikes() + 1);
}
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
}
});
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Replies");
//reference.orderByChild("pLikes")
reference.orderByChild(com_uid).addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot)
{
holder.repliesList.clear();
for (DataSnapshot snapshot : dataSnapshot.child(PostKey).child(com_uid).getChildren())
{
Replies replies = snapshot.getValue(Replies.class);
//final String com = comment.toString();
// Log.d(new String("Comments"), com);
//for (String id : followingList)
if (replies.getComment_uid().equals(com_uid))
{
holder.repliesList.add(replies);
}
}
holder.repliesAdapter.notifyDataSetChanged();
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
@Override
public int getItemCount() {
return mComments.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
ImageButton like
List<Replies> repliesList;
RepliesAdapter repliesAdapter;
public ViewHolder(View itemView) {
super(itemView);
like = itemView.findViewById(R.id.comment_like_button);
repliesRecycler = itemView.findViewById(R.id.all_replies_recycler);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(mContext);
repliesRecycler.setLayoutManager(linearLayoutManager);
repliesRecycler.setHasFixedSize(true);
repliesList = new ArrayList<>();
repliesAdapter = new RepliesAdapter(mContext, repliesList);
repliesRecycler.setAdapter(repliesAdapter);
repliesAdapter.notifyDataSetChanged();
}
// Second Method - Same Result
private void displayReplies(final String com_uid ,final String PostKey, final boolean locked) {
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Replies");
reference.child(PostKey).child(com_uid).addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
repliesList.clear();
if (dataSnapshot.exists()) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
final Replies replies = snapshot.getValue(Replies.class);
if (replies.getComment_uid().equals(com_uid)) {
repliesList.add(replies);
repliesAdapter.notifyDataSetChanged();
}
}
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
}
Адаптер моих ответов:
public class RepliesAdapter extends RecyclerView.Adapter<RepliesAdapter.ViewHolder>
{
public Context mContext;
public List<Replies> mReplies;
public RepliesAdapter(Context mContext, List<Replies> mReplies)
{
this.mContext = mContext;
this.mReplies = mReplies;
}
@NonNull
@Override
public RepliesAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(mContext).inflate(R.layout.all_replies_layout, viewGroup, false);
mAuth = FirebaseAuth.getInstance();
return new RepliesAdapter.ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, final int position)
{
final Replies replies = mReplies.get(position);
holder.myUserName.setText(replies.getUsername());
holder.myComment.setText(replies.getReply());
holder.myTime.setText(replies.getTime());
}
@Override
public int getItemCount() {
return mReplies.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView myUserName, myComment,myTime;
public ViewHolder(View itemView) {
super(itemView);
myUserName = itemView.findViewById(R.id.reply_username);
myComment = itemView.findViewById(R.id.reply_text);
myTime = itemView.findViewById(R.id.reply_time);
}
}